Fresh-keeping control method for refrigerator food materials, refrigerator and computer readable storage medium

Abstract

The embodiment of the invention provides a fresh-keeping control method for food materials in a refrigerator, the refrigerator and a computer readable storage medium, and the fresh-keeping control method comprises the following steps: obtaining a target oxygen concentration range and a target temperature range corresponding to the food materials; and controlling the electrochemical module to generate electrochemical reaction so as to reduce the current oxygen concentration of the preservation box body, and increasing the current temperature of the preservation box body through heat radiation generated by the electrochemical reaction, so that the current oxygen concentration is within the target oxygen concentration range, and the current temperature is within the target temperature range. According to the embodiment of the invention, the oxygen concentration and the temperature in the preservation box body can be controlled through the electrochemical reaction of the electrochemical module, so that the purposes of quickly heating the preservation box body and controlling oxygen are achieved, and the oxygen concentration and the temperature reach the numerical range of food preservation; therefore, the problems that food materials are prone to being excessively cured, blackening and rotting, poor in taste and the like can be solved, the preservation period of the food materials is prolonged, and the nutritional taste of the food materials is improved.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, and in particular to a method for controlling the freshness of refrigerator food, a refrigerator, and a computer-readable storage medium. Background Art

[0002] In the relevant technology, food preservation is often affected by multiple factors such as temperature, humidity and gas environment. For example, generally speaking, tropical fruits are stored in an environment with a temperature of 8℃-15℃, a relative humidity of 85%-95% and an oxygen concentration of 5%-10%, which can effectively inhibit the growth and reproduction of microorganisms and respiration, thereby preventing tropical fruits from losing water and wilting, blackening due to cold damage, and deteriorating taste. Therefore, this is crucial to achieve the ultimate preservation of tropical fruits.

[0003] However, existing refrigerators are difficult to provide the above storage environment. Therefore, tropical fruits stored in existing refrigerators will still quickly turn black and rot, have a bad taste, and lose moisture, making it difficult to better preserve the tropical fruits. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a refrigerator food preservation control method, a refrigerator and a computer-readable storage medium, which are intended to preserve the refrigerator food.

[0005] In a first aspect, an embodiment of the present application provides a method for controlling the freshness of food in a refrigerator, wherein the refrigerator is provided with a freshness-keeping box body with a heat-insulating and sealing function, the freshness-keeping box body is used to store food, and an electrochemical module for deoxygenation is provided in the freshness-keeping box body; the freshness-keeping control method comprises:

[0006] Obtaining a target oxygen concentration range and a target temperature range corresponding to the food;

[0007] The electrochemical module is controlled to undergo an electrochemical reaction to reduce the current oxygen concentration of the fresh-keeping box body, and the current temperature of the fresh-keeping box body is increased by the heat radiation generated by the electrochemical reaction, so that the current oxygen concentration is within the target oxygen concentration range, and the current temperature is within the target temperature range.

[0008] According to some embodiments of the present application, the target oxygen concentration range includes an upper limit value of oxygen concentration, and the target temperature range includes a lower limit value of temperature; and controlling the electrochemical module to generate an electrochemical reaction to reduce the current oxygen concentration of the fresh-keeping box body, and increasing the current temperature of the fresh-keeping box body through the heat radiation generated by the electrochemical reaction, includes:

[0009] Controlling the electrochemical module to generate an electrochemical reaction so that the current oxygen concentration of the fresh-keeping box body is less than the upper limit of the oxygen concentration;

[0010] When the current oxygen concentration is less than the upper limit of the oxygen concentration, obtaining the current temperature of the fresh-keeping box body;

[0011] When the current temperature is greater than the lower temperature limit, the electrochemical module is controlled to stop the electrochemical reaction; or, when the current temperature is less than or equal to the lower temperature limit, the electrochemical module is maintained to continue the electrochemical reaction.

[0012] According to some embodiments of the present application, the freshness-keeping control method further includes:

[0013] When the current oxygen concentration is within the target oxygen concentration range and the current temperature is within the target temperature range, controlling the electrochemical module to stop the electrochemical reaction and starting timing;

[0014] When the timing time reaches the preset time, the electrochemical module is restarted.

[0015] According to some embodiments of the present application, before controlling the electrochemical module to generate an electrochemical reaction to reduce the current oxygen concentration of the fresh-keeping box body, the fresh-keeping control method further includes one of the following:

[0016] receiving a fresh-keeping function instruction, and controlling the electrochemical module to start according to the fresh-keeping function instruction;

[0017] A door closing instruction of the fresh-keeping box body is received, and the electrochemical module is controlled to start according to the door closing instruction.

[0018] According to some embodiments of the present application, the electrochemical module includes a module box body having a cathode and an anode disposed therein, the module box body is used to store water, the module box body is provided with a first damper connected to the inside of the fresh-keeping box body and a second damper connected to the outside of the fresh-keeping box body, the module box body is further provided with a first fan for allowing air to flow through the first damper and a second fan for allowing air to flow through the second damper;

[0019] In the case where water is stored in the module box, controlling the electrochemical module to generate an electrochemical reaction to reduce the current oxygen concentration of the fresh-keeping box body includes:

[0020] Controlling the first fan to extract the air inside the fresh-keeping box body into the interior of the module box body through the first air door;

[0021] The water and the extracted air are subjected to an oxygen reduction reaction on oxygen in the air under the action of the cathode to obtain hydroxide ions;

[0022] The hydroxide ions undergo oxygen evolution reaction under the action of the anode to precipitate water and oxygen in the air;

[0023] The second fan is controlled to discharge the separated oxygen to the outside of the fresh-keeping box body through the second air door.

[0024] According to some embodiments of the present application, the refrigerator is further provided with a humidity adjustment module, the fresh-keeping box body is provided with a third air door connecting the inside of the fresh-keeping box body and the outside of the fresh-keeping box body, and a third fan for allowing air to flow through the third air door; before controlling the electrochemical module to generate an electrochemical reaction to reduce the current oxygen concentration of the fresh-keeping box body, the fresh-keeping control method further includes:

[0025] Obtaining a target humidity range corresponding to the food;

[0026] Controlling the humidity adjustment module to humidify and / or controlling the third fan to replace the air inside the fresh-keeping box body through the third air door, so that the current humidity of the fresh-keeping box body is within the target humidity range;

[0027] When the current humidity is within the target humidity range, the humidity adjustment module, the third fan and the third damper are turned off.

[0028] According to some embodiments of the present application, obtaining a target oxygen concentration range and a target temperature range corresponding to the food includes:

[0029] Obtaining a current type and parameter mapping table of the food, wherein the parameter mapping table includes type information, oxygen concentration information, and temperature information, and there is a mapping relationship between the type information, the oxygen concentration information, and the temperature information;

[0030] A target oxygen concentration range and a target temperature range corresponding to the current category are determined from the parameter mapping table.

[0031] According to some embodiments of the present application, obtaining the target humidity range corresponding to the food includes:

[0032] Acquire the current type and parameter mapping table of the food, wherein the parameter mapping table includes type information and humidity information, and there is a mapping relationship between the type information and the humidity information;

[0033] A target humidity range corresponding to the current category is determined from the parameter mapping table.

[0034] According to some embodiments of the present application, the freshness-keeping control method further includes:

[0035] Detecting the real-time quality status of the food placed inside the fresh-keeping box;

[0036] Determining a recommended oxygen concentration within the target oxygen concentration range and a recommended temperature within the target temperature range according to the food;

[0037] The current oxygen concentration is adjusted according to the real-time quality status so that the difference between the current oxygen concentration and the recommended oxygen concentration is less than a first preset value, and the current temperature is adjusted so that the difference between the current temperature and the recommended temperature is less than a second preset value.

[0038] According to some embodiments of the present application, the detecting the real-time quality status of the food placed inside the fresh-keeping box body includes one of the following:

[0039] Scanning the food placed in the fresh-keeping box body by a spectrometer to obtain a spectrum of the food, and determining the pulp quality state of the food according to the spectrum;

[0040] The food placed in the fresh-keeping box is photographed by a camera to obtain a picture of the food, and the surface quality state of the food is determined according to the picture.

[0041] In a second aspect, an embodiment of the present application provides a refrigerator, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the refrigerator food preservation control method as described in the first aspect above when running the computer program.

[0042] In a third aspect, an embodiment of the present application provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the refrigerator food preservation control method as described in the first aspect above.

[0043] According to the technical solution of the embodiment of the present application, at least the following beneficial effects are achieved: the embodiment of the present application is provided with a fresh-keeping box body with a heat preservation and sealing function in the refrigerator, and an electrochemical module for deoxygenation is provided in the fresh-keeping box body. When fresh-keeping food needs to be stored, first, the embodiment of the present application will obtain the target oxygen concentration range and target temperature range corresponding to the food; then, the embodiment of the present application can control the electrochemical module to undergo an electrochemical reaction to reduce the current oxygen concentration of the fresh-keeping box body, and increase the current temperature of the fresh-keeping box body through the heat radiation generated by the electrochemical reaction, so that the current oxygen concentration is within the target oxygen concentration range, and the current temperature is within the target temperature range. Since the embodiment of the present application can control the oxygen concentration and temperature inside the fresh-keeping box body through the electrochemical reaction of the electrochemical module, the purpose of rapid temperature rise and oxygen control of the fresh-keeping box body is achieved, so that the oxygen concentration and temperature are within the numerical range of food preservation, thereby solving the problems of food over-ripening, blackening and rotting, and poor taste, and extending the fresh-keeping period and nutritional taste of food.

[0044] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings are used to provide further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0046] Figure 1 This is a schematic diagram of the installation structure of a fresh-keeping box body and an electrochemical module provided in one embodiment of the present application;

[0047] Figure 2 This is a schematic diagram of the structural decomposition of an electrochemical module provided by one embodiment of the present application;

[0048] Figure 3 This is a flow chart of a refrigerator food preservation control method provided by an embodiment of the present application;

[0049] Figure 4 is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application;

[0050] Figure 5 is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application;

[0051] Figure 6 is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application;

[0052] Figure 7is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application;

[0053] Figure 8 is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application;

[0054] Fig. 9 is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application;

[0055] Fig.10 is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application;

[0056] Fig.11 is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application;

[0057] Fig.12 is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application;

[0058] Fig.13 is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application;

[0059] Fig.14 is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application;

[0060] Fig.15 This is an overall flow chart of a refrigerator food preservation control method provided by an embodiment of the present application;

[0061] Fig.16 This is a schematic diagram of the quality changes of mangoes under different storage conditions provided by an embodiment of the present application;

[0062] Fig.17 is a bar graph of sensory scores of mangoes under different storage conditions provided by an embodiment of the present application;

[0063] Fig.18 It is a schematic diagram of a controller for executing a method for controlling the freshness of food in a refrigerator provided in one embodiment of the present application. DETAILED DESCRIPTION

[0064] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0065] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0066] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0067] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0068] In some cases, food preservation is often affected by multiple factors such as temperature, humidity and gas environment. For example, tropical fruits are generally stored in an environment with a temperature of 8℃-15℃, a relative humidity of 85%-95% and an oxygen concentration of 5%-10%, which can effectively inhibit the growth and reproduction of microorganisms and respiration, thereby preventing tropical fruits from losing water and wilting, blackening due to cold damage, and deteriorating taste. Therefore, this is crucial to achieve the ultimate preservation of tropical fruits.

[0069] However, existing refrigerators are difficult to provide the above storage environment. Therefore, tropical fruits stored in existing refrigerators will still quickly turn black and rot, have a bad taste, and lose moisture, making it difficult to better preserve the tropical fruits.

[0070] Based on the above situation, the embodiments of the present application propose a method for controlling the freshness of refrigerator food, a refrigerator, and a computer-readable storage medium, aiming to preserve the freshness of refrigerator food.

[0071] The following is a further description of various embodiments of the refrigerator of the present application in conjunction with the accompanying drawings.

[0072] like Figure 1 to Figure 2 As shown, Figure 1 This is a schematic diagram of the installation structure of a fresh-keeping box body and an electrochemical module provided in one embodiment of the present application; Figure 2 It is a schematic diagram of the structural decomposition of an electrochemical module provided in one embodiment of the present application.

[0073] In one embodiment, the refrigerator of the embodiment of the present application is provided with a fresh-keeping box body 100 for storing food, wherein the fresh-keeping box body 100 has a heat preservation and sealing function, and an electrochemical module 200 is installed inside the fresh-keeping box body 100, wherein the electrochemical module 200 can deoxygenate through an electrochemical reaction.

[0074] Specifically, the electrochemical module 200 of the embodiment of the present application can reduce the oxygen concentration inside the fresh-keeping box body 100 by generating an electrochemical reaction, and since the electrochemical reaction generates heat radiation, the temperature inside the fresh-keeping box body 100 can be increased. Therefore, the embodiment of the present application can control the oxygen concentration and temperature inside the fresh-keeping box body 100 through the electrochemical reaction of the electrochemical module 200, so as to achieve the purpose of rapid temperature increase and oxygen control of the fresh-keeping box body 100, so that the oxygen concentration and temperature are within the numerical range of food preservation, thereby solving the problems of food being easily over-ripened, easily blackened and rotten, and easily deteriorating in taste, and extending the fresh-keeping period and nutritional taste of food.

[0075] It should be noted that the above-mentioned ingredients may be vegetables, fruits, or other types of ingredients, and the present embodiment does not specifically limit the types of ingredients. For example, the ingredients of the present embodiment may be tropical fruits, where tropical fruits refer to fruits grown in tropical areas, such as mango, durian, pineapple, etc.

[0076] In addition, it should be noted that for food materials such as vegetables and fruits, storing them in plastic bags is a scientific preservation method commonly used by people in winter. The principle is to reduce the concentration of oxygen, increase the concentration of carbon dioxide, put vegetables and fruits in a dormant state, and extend the storage period. However, the storage time cannot be too long. Because vegetables and fruits are organic foods, they contain high water content and water-soluble nutrients and enzymes. During the entire storage period, strong respiration activities are still carried out. Under normal circumstances, the respiration intensity doubles for every 10°C increase. Under aerobic conditions, sugars or other organic substances in fruits and vegetables are oxidized and decomposed to produce carbon dioxide and water, and release a lot of heat; under anaerobic conditions, sugars cannot be oxidized, but can only be decomposed to produce alcohol, carbon dioxide, and release a small amount of heat. However, the concentration of carbon dioxide cannot rise indefinitely, it can only increase by 10%, and the decrease in oxygen concentration cannot exceed 5%, otherwise in order to obtain enough energy for life activities in the absence of oxygen, fruits and vegetables must decompose more nutrients. At the same time, the alcohol produced by anaerobic respiration remains in the fruits and vegetables, causing them to rot and deteriorate, so fruits and vegetables should not be stored in plastic bags for too long.

[0077] It is worth noting that the existing refrigerators on the market cannot store tropical fruits well. Specifically, various tropical fruits such as dragon fruit, mango, lychee, longan, papaya, rambutan, etc., once these fruits are bought home and put in the refrigerator, the skin will begin to sag and dark brown spots will appear within a few days, which means that the fruits have been frostbitten.

[0078] Most tropical fruits are afraid of cold and should not be refrigerated. Often, people put uneaten fruits in the refrigerator. In fact, this is very bad for tropical fruits, such as bananas, pitaya, mango, lychee, papaya, etc. For example, if a banana is placed in a low temperature environment, it will be frostbitten. This frostbite will damage the cell membrane of the banana, and then the enzymes and dopamine substances inside the cell will penetrate out. These substances will accelerate the oxidation process of the banana and make the banana peel black. At the same time, these substances will also accelerate the ripening process of the banana, causing the fruit to over-mature and eventually rot.

[0079] Generally speaking, temperate fruits, such as grapes, apples, and pears, can be kept fresh in the refrigerator. However, if bananas and mangoes are stored at 10°C, the peel will turn black; if pineapples are stored at 6°C to 10°C, not only will the peel change color, but the flesh will also become waterlogged; if lychees, longans, and rambutans are stored at 1°C to 2°C, the outer peel will darken in color and the inner peel will have spots like burns, and such fruits are often no longer edible. Therefore, tropical fruits are best stored in a dark, cool place.

[0080] In one embodiment, the electrochemical module 200 of the embodiment of the present application includes but is not limited to a module box body 230, wherein a cathode 210 and an anode 220 are installed inside the module box body 230, and the module box body 230 can also store an electrolyte such as water, etc. In addition, the module box body 230 is also provided with a first air gate, a first fan, a second air gate and a second fan, wherein the first air gate is connected to the inside of the fresh-keeping box body 100, and the second air gate is connected to the outside of the fresh-keeping box body 100, the first fan can cause air to flow through the first air gate, and the second air gate can cause air to flow through the second air gate.

[0081] Specifically, the electrochemical reaction of the electrochemical module 200 in the embodiment of the present application includes but is not limited to a cathode reaction and an anode reaction, wherein the cathode reaction process can be: O2+2H 2 O+4e→4OH-, the anode reaction process can be: 4OH--4e→2H 2 O+O 2Therefore, in order to achieve the deoxygenation effect, during the operation of the electrochemical module 200, the embodiment of the present application can control the operation of the first fan and the opening of the first damper, so as to extract the air inside the fresh-keeping box body 100 to the vicinity of the cathode 210, thereby removing the oxygen in the air and generating OH-, then, the OH- will dissolve in the electrolyte, and the OH- in the electrolyte will react near the anode 220, thereby precipitating oxygen, and finally, the embodiment of the present application can control the operation of the second fan and the opening of the second damper, so as to extract the precipitated oxygen to the outside of the fresh-keeping box body 100, thereby achieving the deoxygenation function.

[0082] It is understandable that the above-mentioned electrolyte may be water or other liquids containing water, and the embodiment of the present application does not specifically limit the type of electrolyte.

[0083] In one embodiment, the electrochemical module 200 of the embodiment of the present application further includes but is not limited to a box cover 250 and a sealing ring 240, wherein the box cover 250 is installed at the opening of the module box body 230, and the sealing ring 240 is installed at the opening.

[0084] In one embodiment, the electrochemical module 200 of the embodiment of the present application further includes but is not limited to a water level sensor 260 and a float 270, so as to detect the liquid level of the electrolyte in the module box 230, and when the liquid level is low, the user can be prompted to add electrolyte.

[0085] In one embodiment, the refrigerator of the embodiment of the present application may also be provided with a humidity adjustment module, and the fresh-keeping box body 100 may also be provided with a third air door and a third fan, wherein the third air door can connect the inside of the fresh-keeping box body 100 and the outside of the fresh-keeping box body 100, and the third fan can cause air to flow through the third air door.

[0086] Specifically, the embodiment of the present application can adjust the humidity in the air through the humidity adjustment module, such as spray humidification, water vapor evaporation, etc. The humidity adjustment module can be arranged inside or outside the fresh-keeping box body 100. When the humidity adjustment module is arranged inside the fresh-keeping box body 100, the embodiment of the present application can humidify the air inside the fresh-keeping box body 100 through the humidity adjustment module; when the humidity adjustment module is arranged outside the fresh-keeping box body 100, the embodiment of the present application can extract the air humidified by the humidity adjustment module through the third fan and enter the interior of the fresh-keeping box body 100 through the third air door.

[0087] Those skilled in the art will appreciate that the structure described above does not constitute a limitation on the refrigerator, and may include more or fewer components than shown in the figure, or a combination of certain components, or a different arrangement of components.

[0088] Based on the hardware structure of the above refrigerator, various embodiments of the refrigerator food preservation control method of the present application are proposed below.

[0089] like Figure 3 As shown, Figure 3 1 is a flow chart of a refrigerator food preservation control method provided by an embodiment of the present application. The refrigerator food preservation control method can be applied to the refrigerator of any of the above embodiments, and the refrigerator food preservation control method can include but is not limited to step S310 and step S320.

[0090] Step S310, obtaining a target oxygen concentration range and a target temperature range corresponding to the food;

[0091] Step S320, control the electrochemical module to generate an electrochemical reaction to reduce the current oxygen concentration of the fresh-keeping box body, and increase the current temperature of the fresh-keeping box body through the heat radiation generated by the electrochemical reaction, so that the current oxygen concentration is within the target oxygen concentration range, and the current temperature is within the target temperature range.

[0092] In one embodiment, the electrochemical module of the embodiment of the present application can reduce the oxygen concentration inside the fresh-keeping box body by generating an electrochemical reaction, and because the electrochemical reaction generates heat radiation, the temperature inside the fresh-keeping box body can be increased. Therefore, the embodiment of the present application can control the oxygen concentration and temperature inside the fresh-keeping box body through the electrochemical reaction of the electrochemical module, so as to achieve the purpose of rapid temperature increase and oxygen control of the fresh-keeping box body, so that the oxygen concentration and temperature reach the value range of food preservation, thereby solving the problems of food over-ripening, blackening and rotting, and poor taste, and prolonging the fresh-keeping period and nutritional taste of food.

[0093] It should be noted that the above-mentioned target oxygen concentration range and target temperature range can be set by the user independently or automatically by the system. For example, they can be set according to the type of food or in other ways. The embodiments of the present application do not specifically limit this.

[0094] It is worth noting that in order to better transfer the heat radiation generated by the electrochemical reaction to the air inside the fresh-keeping box, the embodiment of the present application can set a larger contact plane at the cathode position and / or anode position in the electrochemical module, wherein the contact plane is in contact with the fresh-keeping box body. Since the contact plane has a larger area, it can better transfer heat, thereby improving the heat transfer efficiency.

[0095] It can be understood that in order to obtain the oxygen concentration inside the fresh-keeping box body, the embodiment of the present application can set an oxygen concentration sensor inside the fresh-keeping box body; in addition, in order to obtain the temperature inside the fresh-keeping box body, the embodiment of the present application can set a temperature sensor inside the fresh-keeping box body.

[0096] In addition, if Figure 4 As shown, Figure 4 This is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application. The target oxygen concentration range includes an upper limit of the oxygen concentration, and the target temperature range includes a lower limit of the temperature; regarding the control of the electrochemical module to generate an electrochemical reaction in the above step S320 to reduce the current oxygen concentration of the fresh-keeping box body, and to increase the current temperature of the fresh-keeping box body through the heat radiation generated by the electrochemical reaction, it may include but is not limited to step S410, step S420, step S430 and step S440.

[0097] Step S410, controlling the electrochemical module to generate an electrochemical reaction so that the current oxygen concentration of the fresh-keeping box body is less than the upper limit of the oxygen concentration;

[0098] Step S420: when the current oxygen concentration is less than the upper limit of the oxygen concentration, obtain the current temperature of the fresh-keeping box;

[0099] Step S430: If the current temperature is greater than the lower limit of the temperature, the electrochemical module is controlled to stop the electrochemical reaction;

[0100] Step S440: If the current temperature is less than or equal to the lower temperature limit, the electrochemical module is maintained to continue the electrochemical reaction.

[0101] In one embodiment, for tropical fruits, the temperature of the suitable storage environment is generally 8°C-15°C and the oxygen concentration is 5%-10%, while the storage temperature of current refrigerators is generally lower than 8°C. Therefore, the embodiment of the present application can set a lower limit of temperature, such as 8°C; at the same time, in order to inhibit the growth, reproduction and respiration of microorganisms, the embodiment of the present application can set an upper limit of oxygen concentration, such as 10%. First, the embodiment of the present application can control the electrochemical module to undergo an electrochemical reaction to deoxygenate until the oxygen concentration of the fresh-keeping box body is less than the upper limit of oxygen concentration; then, the embodiment of the present application will detect the current temperature of the fresh-keeping box body. If the current temperature is greater than the lower limit of temperature, it indicates that the heat radiation generated by the previous electrochemical reaction is sufficient, then the embodiment of the present application will stop the operation of the electrochemical module; if the current temperature is less than or equal to the lower limit of temperature, it indicates that the heat radiation generated by the previous electrochemical reaction is insufficient, then the embodiment of the present application needs to continue to control the operation of the electrochemical module until the temperature of the fresh-keeping box body is less than or equal to the lower limit of temperature.

[0102] It should be noted that the above-mentioned lower temperature limit and upper oxygen concentration limit can be fixed or flexibly set according to the type of food, and the embodiments of the present application do not make specific limitations on this.

[0103] In addition, if Figure 5 As shown, Figure 51 is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application. The preservation control method of the embodiment of the present application may also include but is not limited to step S510 and step S520.

[0104] Step S510: When the current oxygen concentration is within the target oxygen concentration range and the current temperature is within the target temperature range, the electrochemical module is controlled to stop the electrochemical reaction and start timing;

[0105] Step S520: When the timing time reaches the preset time, restart the electrochemical module.

[0106] In one embodiment, if the oxygen concentration and temperature inside the fresh-keeping box meet the requirements, the electrochemical module can be controlled to stop running at this time; because after the electrochemical module stops running for a period of time, the oxygen concentration and temperature inside the fresh-keeping box will change and may no longer meet the requirements. In this regard, the embodiment of the present application can calculate the time when the electrochemical module stops running by timing. If the timing time reaches the preset time, the embodiment of the present application will restart the electrochemical module.

[0107] It is understandable that the above-mentioned preset time can be 4 hours, 18 hours, or other durations. The embodiment of the present application does not specifically limit the value of the preset time.

[0108] It should be noted that before executing the above step S320 to control the electrochemical module to generate an electrochemical reaction to reduce the current oxygen concentration of the fresh-keeping box, the fresh-keeping control method of the embodiment of the present application may also include but is not limited to Figure 6 or Figure 7 There are two startup scenarios in the code, which are as follows:

[0109] like Figure 6 As shown, Figure 6 2 is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application. Before executing the above step S320, the preservation control method of the embodiment of the present application may also include but is not limited to step S610 and step S620.

[0110] Step S610, receiving a fresh-keeping function instruction;

[0111] Step S620, controlling the electrochemical module to start according to the fresh-keeping function instruction.

[0112] In one embodiment, after placing the food in the fresh-keeping box, the user can issue a fresh-keeping function instruction to the refrigerator through the refrigerator's physical buttons or touch screen, or through voice control, or through a mobile phone to remotely issue a fresh-keeping function instruction to the refrigerator, or other methods, which are not specifically limited in the embodiments of the present application. When the refrigerator receives the fresh-keeping function instruction, it will respond to control the electrochemical module to start.

[0113] like Figure 7 As shown, Figure 7 2 is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application. Before executing the above step S320, the preservation control method of the embodiment of the present application may also include but is not limited to step S710 and step S720.

[0114] Step S710, receiving a door closing instruction of the fresh-keeping box;

[0115] Step S720, controlling the electrochemical module to start according to the door closing instruction.

[0116] In one embodiment, the fresh-keeping box of the embodiment of the present application may be provided with a door sensor, and the door sensor can detect the open or closed state of the fresh-keeping box in real time. Specifically, when the door sensor detects that the fresh-keeping box switches from a closed state to an open state, it indicates that the user may put food into the refrigerator, or may take food out of the refrigerator; when the door sensor detects that the fresh-keeping box switches from an open state to a closed state, it indicates that the user has completed taking and placing food, and the embodiment of the present application can control the electrochemical module to start based on the door closing instruction response.

[0117] It should be noted that the above-mentioned door sensor may be a touch switch, an infrared sensing device, or other devices. The embodiment of the present application does not specifically limit the structural type of the door sensor. For example, when a touch switch is used as a door sensor, if the touch switch is closed, it indicates that the door sensor is in a closed state, and if the touch switch is disconnected, it indicates that the door sensor is in an open state. When an infrared sensing device is used as a door sensor, the embodiment of the present application can sense the opening distance of the refrigerator door through the infrared sensing device. If the opening distance is less than the preset distance, it indicates that the door sensor is in a closed state. If the opening distance is greater than the preset distance, it indicates that the door sensor is in an open state.

[0118] In addition, if Figure 8 As shown, Figure 8This is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application. When water is stored in the module box, the control of the electrochemical module to generate an electrochemical reaction in the above step S320 to reduce the current oxygen concentration of the preservation box may include but is not limited to step S810, step S820, step S830 and step S840.

[0119] Step S810, controlling the first fan to extract the air inside the fresh-keeping box body into the module box body through the first air door;

[0120] Step S820, subjecting the water and the extracted air to an oxygen reduction reaction on oxygen in the air at the cathode to obtain hydroxide ions;

[0121] Step S830, causing the hydroxide ions to undergo oxygen evolution reaction under the action of the anode to precipitate water and oxygen in the air;

[0122] Step S840: Control the second fan to discharge the separated oxygen to the outside of the fresh-keeping box through the second air door.

[0123] In one embodiment, the electrochemical reaction of the electrochemical module in the embodiment of the present application includes but is not limited to cathode reaction and anode reaction, wherein the cathode reaction process can be: O2+2H 2 O+4e→4OH-, the anode reaction process can be: 4OH--4e→2H 2 O+O 2 . Therefore, in order to achieve the deoxygenation effect, during the operation of the electrochemical module, the embodiment of the present application can control the operation of the first fan and the opening of the first damper, so as to extract the air inside the fresh-keeping box body to the vicinity of the cathode position, thereby removing the oxygen in the air and generating OH-, then, OH- will dissolve in the electrolyte, and the OH- in the electrolyte will react near the anode position, thereby precipitating oxygen, and finally, the embodiment of the present application can control the operation of the second fan and the opening of the second damper, so as to extract the precipitated oxygen to the outside of the fresh-keeping box body, thereby achieving the deoxygenation function.

[0124] In addition, if Fig. 9 As shown, Fig. 9 2 is a flowchart of a refrigerator food preservation control method provided by another embodiment of the present application. Before executing the above step S320 to control the electrochemical module to generate an electrochemical reaction to reduce the current oxygen concentration of the fresh-keeping box, the preservation control method of the embodiment of the present application may also include but is not limited to step S910, step S920 and step S930.

[0125] Step S910, obtaining the target humidity range corresponding to the food;

[0126] Step S920, controlling the humidity adjustment module to humidify and / or controlling the third fan to replace the air inside the fresh-keeping box through the third air door, so that the current humidity of the fresh-keeping box is within the target humidity range;

[0127] Step S930: When the current humidity is within the target humidity range, the humidity adjustment module, the third fan and the third damper are turned off.

[0128] In one embodiment, in order to better store the food, the air humidity inside the fresh-keeping box can be controlled within a target humidity range. Specifically, the embodiment of the present application can adjust the humidity in the air through a humidity adjustment module, such as a spray humidification method, a water vapor evaporation method, etc. Among them, the humidity adjustment module can be arranged inside or outside the fresh-keeping box. When the humidity adjustment module is arranged inside the fresh-keeping box, the embodiment of the present application can humidify the air inside the fresh-keeping box through the humidity adjustment module; when the humidity adjustment module is arranged outside the fresh-keeping box, the embodiment of the present application can extract the air humidified by the humidity adjustment module through the third fan and enter the interior of the fresh-keeping box through the third air door.

[0129] It should be noted that the above-mentioned target humidity range can be set by the user independently or automatically by the system. For example, it can be set according to the type of food or in other setting methods. The embodiments of the present application do not make specific limitations on this.

[0130] In addition, if Fig.10 As shown, Fig.10 This is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application. The acquisition of the target oxygen concentration range and the target temperature range corresponding to the food in the above step S310 may include but is not limited to step S1010 and step S1020.

[0131] Step S1010, obtaining the current type of food and a parameter mapping table, wherein the parameter mapping table includes type information, oxygen concentration information and temperature information, and there is a mapping relationship between the type information, oxygen concentration information and temperature information;

[0132] Step S1020: Determine the target oxygen concentration range and target temperature range corresponding to the current type from the parameter mapping table.

[0133] In one embodiment, the target oxygen concentration range and target temperature range corresponding to different types of ingredients may be inconsistent. For example, the target oxygen concentration range suitable for mango may be inconsistent with the target oxygen concentration range suitable for durian, and the target temperature range suitable for mango may be inconsistent with the target temperature range suitable for durian. In this regard, the embodiment of the present application needs to determine the corresponding target oxygen concentration range and target temperature range according to the type of ingredient. Specifically, the embodiment of the present application can be determined by looking up a table, for example, finding the type of ingredient from the parameter mapping table, and determining the oxygen concentration information and temperature information based on the mapping relationship.

[0134] It should be noted that, when there are multiple types of food, multiple oxygen concentration ranges can be determined. In order to store these types of food at the same time, the intersection oxygen concentration range of all oxygen concentration ranges can be calculated, and the intersection oxygen concentration range can be used as the target oxygen concentration range. Similarly, when there are multiple types of food, multiple temperature ranges can be determined. In order to store these types of food at the same time, the intersection temperature range of all temperature ranges can be calculated, and the intersection temperature range can be used as the target temperature range.

[0135] In addition, if Fig.11 As shown, Fig.11 This is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application. The above step S910 of obtaining the target humidity range corresponding to the food may include but is not limited to step S1110 and step S1120.

[0136] Step S1110, obtaining the current type of food and a parameter mapping table, wherein the parameter mapping table includes type information and humidity information, and there is a mapping relationship between the type information and the humidity information;

[0137] Step S1120: Determine the target humidity range corresponding to the current type from the parameter mapping table.

[0138] In one embodiment, the target humidity ranges corresponding to different types of food materials may be inconsistent. For example, the target humidity range suitable for mango may be inconsistent with the target humidity range suitable for durian. In this regard, the embodiment of the present application needs to determine the corresponding target humidity range according to the type of food material. Specifically, the embodiment of the present application can be determined by looking up a table, for example, finding the type of food material from a parameter mapping table, and determining the humidity information based on the mapping relationship.

[0139] It should be noted that when there are multiple types of ingredients, multiple humidity ranges can be determined. In order to store these types of ingredients at the same time, the intersection humidity range of all humidity ranges can be calculated and used as the target humidity range.

[0140] In addition, if Fig.12 As shown, Fig.12 2 is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application. The preservation control method of the embodiment of the present application may also include but is not limited to step S1210, step S1220 and step S1230.

[0141] Step S1210, detecting the real-time quality status of the food placed inside the fresh-keeping box;

[0142] Step S1220, determining a recommended oxygen concentration within a target oxygen concentration range and a recommended temperature within a target temperature range according to the food material;

[0143] Step S1230: adjusting the current oxygen concentration according to the real-time quality status so that the difference between the current oxygen concentration and the recommended oxygen concentration is less than a first preset value, and adjusting the current temperature so that the difference between the current temperature and the recommended temperature is less than a second preset value.

[0144] In one embodiment, for food, there is a suitable target oxygen concentration range and target temperature range, wherein, since the target oxygen concentration range and the target temperature range are both a range, in order to better store the food, an optimal value or a better value can be determined in each of the target oxygen concentration range and the target temperature range as the recommended oxygen concentration and the recommended temperature. After the user places the food in the fresh-keeping box, the embodiment of the present application will also detect the real-time quality status of the food in real time, and control the oxygen concentration and temperature based on the real-time quality status, so that the difference between the current oxygen concentration and the recommended oxygen concentration is less than the first preset value, and the difference between the current temperature and the recommended temperature is less than the second preset value.

[0145] It should be noted that the first preset value and the second preset value mentioned above can be fixed or flexibly set according to the type of food, and the embodiment of the present application does not make any specific limitation on this.

[0146] It should be noted that the real-time quality status of the food placed in the fresh-keeping box in the above step S1210 may include but is not limited to: Fig.13 or Fig.14 There are two detection scenarios in the code, which are as follows:

[0147] like Fig.13 As shown, Fig.13 This is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application. Regarding the detection of the real-time quality status of the food placed in the fresh-keeping box in the above step S1210, it may include but is not limited to step S1310 and step S1320.

[0148] Step S1310: Scanning the food placed inside the fresh-keeping box with a spectrometer to obtain a spectrum of the food;

[0149] Step S1320: determine the pulp quality status of the food material according to the graph.

[0150] like Fig.14 As shown, Fig.14 This is a flow chart of a refrigerator food preservation control method provided by another embodiment of the present application. Regarding the detection of the real-time quality status of the food placed in the fresh-keeping box in the above step S1210, it may include but is not limited to step S1410 and step S1420.

[0151] Step S1410: photographing the food placed inside the fresh-keeping box with a camera to obtain a picture of the food;

[0152] Step S1420: determine the skin quality status of the food according to the picture.

[0153] In one embodiment, the embodiment of the present application can scan the food through a spectrometer to obtain a spectrum of the food, and then analyze the spectrum to obtain the pulp quality status of the food; or, the embodiment of the present application can photograph the food through a camera to obtain a picture of the food, and then analyze the picture to obtain the skin quality status of the food.

[0154] Based on the above-mentioned methods for controlling the freshness of food in a refrigerator in each of the above-mentioned embodiments, overall embodiments of the method for controlling the freshness of food in a refrigerator of the present application are respectively proposed below.

[0155] like Fig.15 As shown, Fig.15 This is an overall flow chart of a refrigerator food preservation control method provided by an embodiment of the present application, including but not limited to the following steps S1510 to S1570.

[0156] Step S1510, start the tropical function button;

[0157] Step S1520, controlling the electrochemical module to start;

[0158] Step S1530, determine whether the current oxygen concentration is less than 10%, if so, execute step S1540, otherwise return to continue the determination;

[0159] Step S1540, determine whether the current temperature is greater than 8°C, if so, execute step S1570, otherwise execute step S1550;

[0160] Step S1550, controlling the electrochemical module to keep running, and executing step S1560;

[0161] Step S1560, determine whether the current temperature is greater than 8°C, if so, execute step S1570, otherwise return to execute step S1550;

[0162] Step S1570, control the electrochemical module to stop running until the stop time reaches t0, and then return to execute step S1520.

[0163] In one embodiment, the refrigerator can achieve a refrigeration temperature of 0℃-8℃. To achieve a constant temperature zone of 8℃-15℃, an additional heating wire is required, which is easy to affect the ambient temperature. In this regard, the electrochemical module of the embodiment of the present application will generate heat radiation while deoxygenating, and the heat can be gathered in the fresh-keeping box body such as the heat-insulating sealed drawer, which can achieve a constant temperature of 8℃-15℃ in the drawer, and the oxygen can also control the optimal tropical fruit storage concentration of 5%-10%. In addition, the EPS insulation layer loaded on the outer layer of the sealed drawer can maintain the temperature and humidity of the special area drawer stable.

[0164] Specifically, the embodiment of the present application can control the temperature and gas environment of the drawer through the electrochemical module to achieve the purpose of rapid temperature rise and oxygen control in the storage space, solve the pain points of tropical fruits being easily over-ripened and easily blackened in the refrigerator, and extend the preservation period and nutritional taste of tropical fruits. Its control logic is as follows: the oxygen concentration in the functional area is sensed by the oxygen sensor to control the operation of the electrochemical module. When the oxygen concentration in the functional area reaches below 10%, the temperature is determined. When the temperature also satisfies T>8℃, the cycle is exited and the electrochemical module stops for t0h, where the value of t0 can be 4-18 hours.

[0165] In addition, if Fig.16 , Fig.17 As shown in Table 1, Fig.16 The two pictures on the left are pictures of mangoes at 4°C, the two pictures in the middle are pictures of mangoes at 25°C, and the two pictures on the right are pictures of mangoes in the tropical fruit functional area of ​​the embodiment of the present application; Fig.17 It includes multiple groups of columnar data, such as the data of the peel state group, the data of the aroma group, the data of the pulp color group, the data of the taste group, the data of the texture group and the data of the preference group. For each group, the left bar is the bar at 4°C, the middle bar is the bar at 25°C, and the right bar is the bar under the tropical fruit functional area of ​​the embodiment of the present application. The embodiment of the present application can create the best storage environment for tropical fruits in the drawer, with a space temperature of 8-15°C, a space humidity of 85%-95%, and a space oxygen concentration of 5%-10%, so as to achieve long-term preservation of tropical fruits, no blackening, and high nutrition retention. As can be seen from the figure, the mango fruit storage functional area under the tropical mode, the 7d appearance, quality, flavor and other dimensions are better than the 25°C and 4°C storage groups, and the overall preference of mangoes in the tropical mode functional area is increased by about 50%, and the difference is significant.

[0166]

[0167] Table 1

[0168] The embodiment of the present application uses the oxygen control and heat generation characteristics of the electrochemical module to achieve a storage space temperature and oxygen that quickly reaches a suitable storage environment for tropical fruits, solves the pain points of tropical fruits being over-ripened at room temperature and turning black in the refrigerator, and prolongs the shelf life of tropical fruits and retains the original nutritional taste. Specifically, it can include the following three points: 1. The suitable storage temperature for tropical fruits is 8-15°C. The embodiment of the present application can achieve rapid temperature rise in the storage space, effectively reducing the adverse effects of low temperature on tropical fruits; 2. The suitable storage oxygen range for tropical fruits is 5%-10%. The embodiment of the present application uses the electrochemical module to quickly control oxygen to 5%-10%, which can effectively prolong the shelf life of tropical fruits in the storage area and improve the taste. 3. In addition, the suitable storage humidity for tropical fruits is 85%-95%. The embodiment of the present application can achieve high moisture retention in the drawer through drawer sealing combined with module humidification, reducing the moisture loss of tropical fruits.

[0169] Based on the refrigerator food preservation control method of each of the above-mentioned embodiments, various embodiments of the controller, refrigerator and computer-readable storage medium of the present application are respectively proposed below.

[0170] like Fig.18 As shown, Fig.18 300 is a schematic diagram of a controller for executing a refrigerator food preservation control method provided by an embodiment of the present application. The controller 300 implemented in the present application includes: a processor 310, a memory 320, and a computer program stored in the memory 320 and executable on the processor 310, wherein: Fig.18 In the figure, a processor 310 and a memory 320 are taken as an example.

[0171] The processor 310 and the memory 320 may be connected via a bus or other means. Fig.18 The example of connecting through bus is taken in the following.

[0172] The memory 320, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer executable programs. In addition, the memory 320 may include a high-speed random access memory, and may also include a non-transitory memory, such as at least one disk storage device, a flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 320 may optionally include a memory 320 remotely arranged relative to the processor 310, and these remote memories 320 may be connected to the controller 300 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0173] Those skilled in the art will understand that Fig.18 The device structure shown in the figure does not constitute a limitation on the controller 300, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0174] exist Fig.18 In the controller 300 shown, the processor 310 can be used to call the refrigerator food preservation control program stored in the memory 320, so as to implement the refrigerator food preservation control method described above. Specifically, the non-transient software program and instructions required to implement the refrigerator food preservation control method of the above embodiment are stored in the memory 320, and when executed by the processor 310, the refrigerator food preservation control method of the above embodiment is executed.

[0175] It is worth noting that since the controller 300 of the embodiment of the present application can execute the refrigerator food preservation control method of any of the above-mentioned embodiments, the specific implementation manner and technical effects of the controller 300 of the embodiment of the present application can refer to the specific implementation manner and technical effects of the refrigerator food preservation control method of any of the above-mentioned embodiments.

[0176] In addition, an embodiment of the present application further provides a refrigerator, comprising a controller of the above embodiment, wherein the controller executes the refrigerator food preservation control method of any of the above embodiments when running a computer program.

[0177] It is worth noting that since the refrigerator of the embodiment of the present application includes the controller of the above-mentioned embodiment, and the controller of the above-mentioned embodiment can execute the refrigerator food preservation control method of any of the above-mentioned embodiments, the specific implementation methods and technical effects of the refrigerator of the embodiment of the present application can refer to the specific implementation methods and technical effects of the refrigerator food preservation control method of any of the above-mentioned embodiments.

[0178] In addition, an embodiment of the present application further provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are used to execute the above-mentioned refrigerator food preservation control method. Figures 3 to 15 The method steps in .

[0179] It is worth noting that since the computer-readable storage medium of the embodiment of the present application can execute the refrigerator food preservation control method of any of the above-mentioned embodiments, the specific implementation methods and technical effects of the computer-readable storage medium of the embodiment of the present application can refer to the specific implementation methods and technical effects of the refrigerator food preservation control method of any of the above-mentioned embodiments.

[0180] It will be appreciated by those skilled in the art that all or some of the steps and systems in the disclosed method above may be implemented as software, firmware, hardware and appropriate combinations thereof. Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or may be implemented as hardware, or may be implemented as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or a non-transitory medium) and a communication medium (or a temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that may be used to store desired information and may be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically include computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0181] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the above implementation mode. Technical personnel familiar with the field can also make various equivalent modifications or substitutions under the shared conditions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A method for controlling the freshness of refrigerator food. It is characterized in that The refrigerator is provided with a fresh-keeping box body with a heat-insulating and sealing function, the fresh-keeping box body is used to store food, and an electrochemical module for deoxygenation is provided in the fresh-keeping box body; The fresh-keeping control method comprises: Obtaining a target oxygen concentration range and a target temperature range corresponding to the food; The electrochemical module is controlled to undergo an electrochemical reaction to reduce the current oxygen concentration of the fresh-keeping box body, and the current temperature of the fresh-keeping box body is increased by the heat radiation generated by the electrochemical reaction, so that the current oxygen concentration is within the target oxygen concentration range, and the current temperature is within the target temperature range.

2. The method for controlling the freshness of refrigerator food according to claim 1, It is characterized in that The target oxygen concentration range includes an upper limit of the oxygen concentration, and the target temperature range includes a lower limit of the temperature; and controlling the electrochemical module to generate an electrochemical reaction to reduce the current oxygen concentration of the fresh-keeping box body, and increasing the current temperature of the fresh-keeping box body through the heat radiation generated by the electrochemical reaction, includes: Controlling the electrochemical module to generate an electrochemical reaction so that the current oxygen concentration of the fresh-keeping box body is less than the upper limit of the oxygen concentration; When the current oxygen concentration is less than the upper limit of the oxygen concentration, obtaining the current temperature of the fresh-keeping box body; When the current temperature is greater than the lower temperature limit, the electrochemical module is controlled to stop the electrochemical reaction; or, when the current temperature is less than or equal to the lower temperature limit, the electrochemical module is maintained to continue the electrochemical reaction.

3. The method for controlling the freshness of refrigerator food according to claim 1, It is characterized in that The fresh-keeping control method also includes: When the current oxygen concentration is within the target oxygen concentration range and the current temperature is within the target temperature range, controlling the electrochemical module to stop the electrochemical reaction and starting timing; When the timing time reaches the preset time, the electrochemical module is restarted.

4. The method for controlling the freshness of refrigerator food according to claim 1, It is characterized in that Before controlling the electrochemical module to generate an electrochemical reaction to reduce the current oxygen concentration of the fresh-keeping box body, the fresh-keeping control method further includes one of the following: receiving a fresh-keeping function instruction, and controlling the electrochemical module to start according to the fresh-keeping function instruction; A door closing instruction of the fresh-keeping box body is received, and the electrochemical module is controlled to start according to the door closing instruction.

5. The method for controlling the freshness of refrigerator food according to claim 1, It is characterized in that The electrochemical module includes a module box body with a cathode and an anode arranged therein, the module box body is used to store water, the module box body is provided with a first air door connected to the inside of the fresh-keeping box body and a second air door connected to the outside of the fresh-keeping box body, and the module box body is also provided with a first fan for allowing air to flow through the first air door and a second fan for allowing air to flow through the second air door; In the case where water is stored in the module box, controlling the electrochemical module to generate an electrochemical reaction to reduce the current oxygen concentration of the fresh-keeping box body includes: Controlling the first fan to extract the air inside the fresh-keeping box body into the interior of the module box body through the first air door; The water and the extracted air are subjected to an oxygen reduction reaction on oxygen in the air under the action of the cathode to obtain hydroxide ions; The hydroxide ions undergo oxygen evolution reaction under the action of the anode to precipitate water and oxygen in the air; The second fan is controlled to discharge the separated oxygen to the outside of the fresh-keeping box body through the second air door.

6. The method for controlling the freshness of refrigerator food according to claim 1, It is characterized in that The refrigerator is also provided with a humidity adjustment module, and the fresh-keeping box body is provided with a third air door connecting the inside of the fresh-keeping box body and the outside of the fresh-keeping box body, and a third fan for allowing air to flow through the third air door; Before controlling the electrochemical module to generate an electrochemical reaction to reduce the current oxygen concentration of the fresh-keeping box body, the fresh-keeping control method further includes: Obtaining a target humidity range corresponding to the food; Controlling the humidity adjustment module to humidify and / or controlling the third fan to replace the air inside the fresh-keeping box body through the third air door, so that the current humidity of the fresh-keeping box body is within the target humidity range; When the current humidity is within the target humidity range, the humidity adjustment module, the third fan and the third damper are turned off.

7. The method for controlling the freshness of refrigerator food according to any one of claims 1 to 6, It is characterized in that The obtaining of the target oxygen concentration range and the target temperature range corresponding to the food includes: Obtaining a current type and parameter mapping table of the food, wherein the parameter mapping table includes type information, oxygen concentration information, and temperature information, and there is a mapping relationship between the type information, the oxygen concentration information, and the temperature information; A target oxygen concentration range and a target temperature range corresponding to the current category are determined from the parameter mapping table.

8. The method for controlling the freshness of refrigerator food according to claim 6, It is characterized in that The obtaining of the target humidity range corresponding to the food includes: Acquire the current type and parameter mapping table of the food, wherein the parameter mapping table includes type information and humidity information, and there is a mapping relationship between the type information and the humidity information; A target humidity range corresponding to the current category is determined from the parameter mapping table.

9. The method for controlling the freshness of refrigerator food according to any one of claims 1 to 6, It is characterized in that The fresh-keeping control method also includes: Detecting the real-time quality status of the food placed inside the fresh-keeping box; Determining a recommended oxygen concentration within the target oxygen concentration range and a recommended temperature within the target temperature range according to the food; The current oxygen concentration is adjusted according to the real-time quality status so that the difference between the current oxygen concentration and the recommended oxygen concentration is less than a first preset value, and the current temperature is adjusted so that the difference between the current temperature and the recommended temperature is less than a second preset value.

10. The method for controlling the freshness of refrigerator food according to claim 9, It is characterized in that The detecting of the real-time quality status of the food placed in the fresh-keeping box body includes one of the following: Scanning the food placed in the fresh-keeping box body by a spectrometer to obtain a spectrum of the food, and determining the pulp quality state of the food according to the spectrum; The food placed in the fresh-keeping box is photographed by a camera to obtain a picture of the food, and the surface quality state of the food is determined according to the picture.

11. A refrigerator, It is characterized in that include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the refrigerator food preservation control method as described in any one of claims 1 to 10 when executing the computer program.

12. A computer-readable storage medium, Features: Computer executable instructions are stored, and the computer executable instructions are used to execute the refrigerator food preservation control method as described in any one of claims 1 to 10.

Images